Can I build a deck together with friends on TCGSwap?

Yes. Every deck on TCGSwap has a Collaboration Space. You can invite up to 5 friends; they can suggest card changes, discuss ideas, and playtest proposals. You review and apply suggestions before anything changes in your deck.

How does deck collaboration work?

It works like a pull request for your deck. Collaborators open the deck editor, make their proposed changes, and submit a suggestion with a note. You get notified, open the comparison view to see exactly what they changed, and choose to apply all, cherry-pick individual cards, or decline. Nothing changes in your deck until you approve it.

Can collaborators chat and discuss the deck?

Yes. The Collaboration Space has a shared group discussion thread for the whole deck, plus a per-suggestion Q&A thread for each proposal. You can @mention teammates and link specific cards inline.

Is collaborative deck building free?

Yes, collaboration is free for all TCGSwap users during beta. You can invite up to 5 collaborators per deck.

Does TCGSwap work for MTG, Pokémon, Yu-Gi-Oh and One Piece collaboration?

Yes. The Collaboration Space supports all four games — Magic: The Gathering, Pokémon TCG, Yu-Gi-Oh and One Piece. Format validation and card prices are included for each game.

Rainbow Crystal Collection · Speed Duel GX: Duel Academy Box 300302038/218

Rainbow Crystal Collection (Speed Duel GX: Duel Academy Box 300302038/218), Common. Market price $0.06, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket, not guaranteed values.

If a face-up "Crystal Beast" monster you control would be destroyed, you can place a Crystallization Counter on it instead. Monsters with Crystallization Counters are considered Continuous Spell Cards in your Spell & Trap Zone instead of monsters. If a card with a Crystallization Counter would be Special Summoned, remove the counter. Cards with Crystallization Counters can be used as Fusion Material for "Ultimate Crystal" monsters.

Weekly price history

Week	Market price
2026-W31	$0.08
2026-W32	$0.09
2026-W33	$0.08
2026-W34	$0.09
2026-W35	$0.09
2026-W36	$0.09
2026-W37	$0.09
2026-W38	$0.06
2026-W39	$0.06

Questions

How much is Rainbow Crystal Collection 300302038/218 worth?

Rainbow Crystal Collection from Speed Duel GX: Duel Academy Box (300302038/218) has a market estimate of $0.06, unchanged this week. Prices are estimates from TCGPlayer and Cardmarket.

Is Rainbow Crystal Collection 300302038/218 rare?

It is a Common from Speed Duel GX: Duel Academy Box, a 218-card set.

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